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Q.35 Which of the following acts as wound hormones in plants?(A) Ethylene(B) Cytokinins(C) Abscisic acid(D) Dextrin Ethylene acts as the primary wound hormone among the given options in plants. This gaseous […]

Q.34 Which of the following are producers in an ecological system?(A) Macrophytes(B) Phytoplanktons(C) Zooplanktons(D) Cyanobacteria Producers in an ecological system are autotrophs that synthesize their own food via photosynthesis or […]

Q.33 Archaeal cell membranes contain lipids that are(A) Ether linked(B) Ester linked(C) Branched alkyl chain(D) Linear alkyl chain Archaeal cell membranes feature unique ether-linked lipids, distinguishing them from bacterial and […]

Q.32 Transfer of plasmids into animal cells can be achieved by(A) Electroporation(B) Liposome–mediated process(C) Calcium chloride treatment(D) Sucrose treatment Correct Answer: (A) Electroporation and (B) Liposome-mediated process Both electroporation and […]

Q.31 Transpirational pull that extends down to the roots in plants can be interruptedby(A) Process of cavitation(B) Process of gravitation(C) Formation of water vapor pockets(D) Positive pressure in xylem sap […]

Q.30 In a nephron, _____ follows the ascending limb of the “loop of Henle”.(A) Descending limb(B) Distal tubule(C) Collecting tubule(D) Proximal tubule The correct answer is (B) Distal tubule. In […]

Q.29 A rise in cytosolic calcium ion concentration just after fertilization in a seaurchin egg leads to(A) Formation of fertilization envelope(B) Acrosomal reaction(C) Formation of vegetal pole(D) Formation of animal […]

Q.28 In bacteria, the σ factor that plays a major role in transcription during thestationary phase is(A) σ70(B) σ54(C) σ28(D) σ32 σ32 is the sigma factor that plays a major […]

Q. 27 In the electron transport chain, flavin mononucleotide (FMN) can adopt ______as the highest oxidation state and is capable of accepting or donating _____electrons, respectively.(A) 2; 2 or 3(B) […]

Q.26 The net equation for aerobic glycolysis is(A) Glucose+2ATP 2 lactate+2ADP+2Pi(B) Glucose+2ADP+2Pi+2NAD+ 2 pyruvate+2ATP+2NADH+2H2O+4H+(C) Glucose+2ADP+2Pi 2 pyruvate+2ATP+2H2O(D) Glucose+2ADP+2Pi+2NAD+ 2 lactate+2ATP+2NADH+2H2O+4H+ The correct net equation for aerobic glycolysis is: Glucose + […]